* {
    padding: 0;
    margin: 0;
}

.orange {
    color: #ff7a19;
}

.fl {
    float: left;
}

li {
    list-style: none;
}


/* 在父元素中添加 伪类元素清除浮动 */

.clearfix:after {
    content: "";
    display: block;
    height: 0;
    visibility: hidden;
    clear: both;
}


/* 图片满屏 */

.full_screen {
    /* position: absolute; */
    width: 100%;
    background-image: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_1.png);
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
}

.full_screen_2 {
    width: 100%;
}

#img2 {
    /* width: 100vw; */
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_2.jpg) no-repeat;
    background-size: cover;
    background-position: center center;
    /* background-repeat: no-repeat; */
}

#img3 {
    /* width: 100vw; */
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_3.png) no-repeat;
    background-size: cover;
    background-position: center center;
}


/* 标题定位设置 */

.head_box {
    position: absolute;
    top: 35vh;
    left: 50%;
    /* 50%为自身尺寸的一半 */
    transform: translate(-50%, -50%);
}

.head_p {
    color: #ff8400;
    font-size: 5.5vw;
    font-weight: 700;
    text-shadow: 0.3vw 0.3vw rgb(0 0 0 / 50%);
}

.bottom_line {
    /* 保持横线在中间 */
    margin-left: 50%;
    transform: translate(-50%, 0);
    height: 0.4vw;
    width: 18vw;
    background-color: #ff8400;
}


/* 相关内容介绍 */


/* 第一版 */


/* .juzhong {
    width: 1500px;
    margin: 0 auto;
} */

.title {
    margin-top: 15px;
}

.title_box {
    display: flex;
    justify-content: flex-start;
    margin-top: 20px;
}

.circle {
    position: relative;
    width: 2vw;
    height: 2vw;
    border-radius: 2vw;
    background-color: #f9e6aa;
    margin: 23px 3vw 0 5.1vw;
}

.circle_son {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 1vw;
    height: 1vw;
    border-radius: 1vw;
    background-color: #ffc000;
}

.title p {
    font-size: 2.5vw;
    font-weight: 700;
}

.introduce_box {
    position: relative;
    width: 90vw;
    height: 37vw;
    margin: 15px 0 40px 6vw;
    padding: 0px 0 0 4vw;
    border-left: 0.3vw solid #ffd451;
}

.introduce_point li {
    display: inline-block;
    list-style: none;
    overflow: hidden;
    height: 3.2vw;
    padding-left: 20px;
    padding-right: 20px;
    line-height: 3.2vw;
    margin-top: 20px;
    background-color: #f6e3ab;
    font-size: 1.3vw;
    font-weight: 540;
}

.mark {
    display: inline-block;
    margin-right: 10px;
    width: 0.7vw;
    height: 0.7vw;
    border-radius: 0.7vw;
    background-color: black;
}

.introduce_img_1 {
    width: 85vw;
    height: 28vw;
}

.introduce_img_1 ul li {
    float: left;
    width: 17vw;
    height: 25vw;
    margin-right: 40px;
    margin-top: 60px;
}

.introduce_img_1 ul li:nth-child(1) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_4_1.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.introduce_img_1 ul li:nth-child(2) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_4_2.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.introduce_img_1 ul li:nth-child(3) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_4_3.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.introduce_img_1 ul li:nth-child(4) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_4_4.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}


/* 第二版介绍 */

.introduce_img_2 {
    display: flex;
    margin-top: 2vw;
}

.person {
    width: 25vw;
    height: 31vw;
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_5_1.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.proof {
    /* display: flex; */
    /* flex-wrap: wrap; */
    width: 60vw;
    margin-top: 6vw;
}

.proof_1,
.proof_2 {
    display: flex;
    height: 12vw;
}

.proof_1 ul li {
    float: left;
    width: 14vw;
    height: 100%;
    margin-left: 50px;
}

.proof_2 ul li {
    float: left;
    width: 14vw;
    height: 100%;
    margin-left: 50px;
}

.proof_1 ul li:nth-child(1) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_5_2.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.proof_1 ul li:nth-child(2) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_5_3.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.proof_1 ul li:nth-child(3) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_5_4.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.proof_2 ul li:nth-child(1) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_5_5.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.proof_2 ul li:nth-child(2) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_5_6.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.proof_2 ul li:nth-child(3) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_5_7.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}


/* 第三版介绍 */

.introduce_img_3 {
    display: flex;
    width: 85vw;
    margin-top: 3vw;
    height: 320px;
}

.introduce_img_3 div {
    height: 18vw;
    width: 27vw;
    margin-right: 30px;
}

.introduce_img_3 div:nth-child(1) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_6_1.png) no-repeat;
    background-size: 90%;
    background-position: top center;
}

.introduce_img_3 div:nth-child(2) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_6_2.png) no-repeat;
    background-size: 95%;
    background-position: top center;
}

.introduce_img_3 div:nth-child(3) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_6_3.png) no-repeat;
    background-size: 100%;
    background-position: top center;
}

.introduce_img_3 p {
    margin-top: 18vw;
    font-size: 1.2vw;
    font-weight: 549;
    text-align: center;
}


/* 第四版介绍 */

.introduce_img_4 {
    display: flex;
    justify-content: flex-start;
    margin-top: 5vw;
}

.introduce_img_4 div {
    height: 20vw;
    width: 25vw;
    margin-right: 3vw;
}

.introduce_img_4 div:nth-child(1) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_7_1.png) no-repeat;
    background-size: 100%;
    background-position: top center;
}

.introduce_img_4 div:nth-child(2) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_7_2.png) no-repeat;
    background-size: 100%;
    background-position: top center;
}

.introduce_img_4 div:nth-child(3) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_7_3.png) no-repeat;
    background-size: 100%;
    background-position: top center;
}

.introduce_img_4 img {
    height: 245px;
    margin-right: 20px;
}

.introduce_img_4 p {
    display: block;
    width: 22vw;
    text-align: center;
    font-weight: 549;
    font-size: 1vw;
    margin-top: 18vw;
}


/* 第五版介绍 */

.introduce_point_max li {
    margin-top: -40px;
    height: 7vw;
    width: 80vw;
}

.introduce_img_5 {
    display: flex;
}

.introduce_img_5 div:nth-child(1) {
    width: 20vw;
    height: 27vw;
    margin-top: 5vw;
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_8_1.png) no-repeat;
    background-size: 100%;
    background-position: top center;
}

.introduce_img_5 div:nth-child(2) {
    width: 20vw;
    height: 27vw;
    margin-top: 5vw;
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_8_2.png) no-repeat;
    background-size: 100%;
    background-position: top center;
}

.introduce_img_5 div:nth-child(3) {
    width: 25vw;
    height: 25vw;
    margin-top: 10vw;
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_8_3.png) no-repeat;
    background-size: 100%;
    background-position: top center;
}

.introduce_img_5 div:nth-child(4) {
    width: 17vw;
    height: 24vw;
    margin-top: 107px;
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industy_8_4.png) no-repeat;
    background-size: 100%;
    background-position: top center;
}

.p1 {
    /* margin-left: 55px; */
    font-weight: 549;
    margin-top: 17vw;
    text-align: center;
    font-size: 1.3vw;
}

.p2 {
    margin-left: 4.5vw;
    font-weight: 549;
    margin-top: 23vw;
    font-size: 1.3vw;
}


/* 第六版介绍 */

.introduce_img_6 {
    display: flex;
    margin-top: 3vw;
}

.introduce_img_6 div {
    margin-right: 15px;
    width: 11vw;
    height: 16vw;
}

.introduce_img_6 div:nth-child(1) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_9_1.png) no-repeat;
    background-size: 100%;
    background-position: top center;
}

.introduce_img_6 div:nth-child(2) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_9_2.png) no-repeat;
    background-size: 96%;
    background-position: top center;
}

.introduce_img_6 div:nth-child(3) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_9_3.png) no-repeat;
    background-size: 90%;
    background-position: top center;
}

.introduce_img_6 div:nth-child(4) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_9_4.png) no-repeat;
    background-size: 91%;
    background-position: top center;
}

.introduce_img_6 div:nth-child(5) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_9_5.png) no-repeat;
    background-size: 95%;
    background-position: top center;
}

.introduce_img_6 div:nth-child(6) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_9_6.png) no-repeat;
    background-size: 86%;
    background-position: top center;
}

.introduce_img_6 div:nth-child(7) {
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/industry_9_7.png) no-repeat;
    background-size: 81%;
    background-position: top center;
}

.introduce_img_6 p {
    display: block;
    padding: 0 10px;
    font-size: 1vw;
    text-align: center;
    margin-top: 14vw;
}


/* 第七版介绍 */

.line {
    width: 83vw;
    margin-top: 40px;
    margin-left: -18px;
    height: 0.3vw;
    background-color: #ffc000;
}

.img_7 {
    width: 1270px;
    padding-right: 20px;
    border-right: 3px solid #ffc000;
}

.line_right {
    position: absolute;
    top: 0px;
    left: 87vw;
    height: 40vw;
    width: 0.3vw;
    background-color: #ffd451;
}

.lt {
    width: 500px;
    height: 12vw;
    padding-left: 30px;
}

.line2 {
    position: relative;
    margin-left: 20px;
}

.line2_1 {
    width: 1vw;
    height: 1vw;
    border-radius: 1vw;
    background-color: #92c023;
}

.line2_2 {
    position: absolute;
    top: 1vw;
    right: 0.4vw;
    width: 0.2vw;
    height: 7vw;
    background-color: #92c023;
}

.line2_3 {
    position: absolute;
    top: 7vw;
    left: 0;
    width: 1vw;
    height: 1vw;
    border-radius: 1vw;
    background-color: #92c023;
}

.lt p {
    font-weight: 700;
    font-size: 1.3vw;
    line-height: 2vw;
}

.red {
    color: #b90102;
    text-shadow: 2px 2px rgb(0 0 0 / 50%);
}

.rt {
    position: absolute;
    top: 1vw;
    left: 47vw;
    width: 38vw;
    height: 9vw;
}

.rt p {
    font-weight: 700;
    font-size: 1.3vw;
    line-height: 2vw;
    margin-top: -1vw
}

.img_10_1 {
    position: absolute;
    bottom: 10px;
    left: 30px;
    width: 30vw;
    height: 20vw;
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/didusty_10_4.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}


/* .img_10_1 img {
    width: 350px;
} */

.img_10_2 {
    position: absolute;
    top: 10vw;
    left: 18vw;
    width: 10vw;
    height: 12vw;
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/didusty_10_1.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}


/* .img_10_2 img {
    width: 150px;
} */

.img_10_3 {
    position: absolute;
    top: 6vw;
    left: 35vw;
    width: 15vw;
    height: 15vw;
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/didusty_10_2.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.img_10_4 {
    position: absolute;
    top: 6vw;
    left: 66vw;
    width: 13vw;
    height: 15vw;
    background: url(https://mainstb.oss-cn-shenzhen.aliyuncs.com/pengyubrother/pc-pic/industry/didusty_10_3.png) no-repeat;
    background-size: 100%;
    background-position: center center;
}

.rb {
    position: absolute;
    bottom: 0;
    left: 37vw;
    width: 48vw;
    height: 22vw;
}

.line3 {
    position: relative;
    margin-top: 7vw;
}

.line3_1 {
    width: 1vw;
    height: 1vw;
    border-radius: 1vw;
    background-color: #f49a05;
}

.line3_2 {
    position: absolute;
    top: 1vw;
    right: 0.4vw;
    width: 0.2vw;
    height: 7vw;
    background-color: #f49a05;
}

.line3_3 {
    position: absolute;
    top: 8vw;
    left: 0;
    width: 1vw;
    height: 1vw;
    border-radius: 1vw;
    background-color: #f49a05;
}

.rb p {
    font-weight: 800;
    font-size: 1.3vw;
    line-height: 2vw;
    margin-top: 7vw;
}